"GMA" began its show with a close-up on Roberts, who said, "I have been waiting 174 days to say this: 'Good Morning America.'"

She went on to add, "I keep pinching myself, and I realize this is real. This is actually happening."

"GMA" has been following her treatment every step of the way and it has undoubtedly been a factor in "GMA's" take over as morning show king in the ratings, as it passed up "Today" in 2012.

In fact, after Roberts' illness was announced and "Today" let Ann Curry go, former "Today" show executive producer Jim Bell wrote in an email that "GMA" now had "a new weapon in its arsenal," referring to Roberts' treatment saga.

However, everyone is glad to see Roberts has recovered. New "Today" executive producer Don Nash writes in an email, "Robin is an outstanding broadcaster, a great colleague and friend to so many. All of us at 'Today' wish her continued good health and years of hitting the 3 a.m. snooze button!"

And on "Today" Wednesday morning, Savannah Guthrie adds, "Before we get to the news, we want to give a warm welcome back to our colleague at ABC Robin Roberts. She is back on the air this morning at 'GMA,' she is looking and feeling great, and I know we are all really happy for her. She looks radiant this morning."

Al Roker adds praise for Roberts' "grace, dignity and humor and all the work she's done for bone marrow transplants."